Home / 8,386.30-12,579.45-2,542.91

Finding the Fourth Proportional to 8,386.30, 12,579.45 and 2,542.91

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Solution

The fourth proportional to 8,386.30, 12,579.45 and 2,542.91 is: 3,814.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.30 : 12,579.45 = 2,542.91 : x
  2. Step 2: Convert to fraction form
    8,386.30/12,579.45 = 2,542.91/x
  3. Step 3: Cross multiply
    8,386.30x = 12,579.45 × 2,542.91
  4. Step 4: Simplify right side
    8,386.30x = 31,988,409.20
  5. Step 5: Solve for x
    x = 31,988,409.20/8,386.30
  6. Step 6: Final answer
    x = 3,814.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.